mirror of
https://github.com/guanzhi/GmSSL.git
synced 2026-05-07 08:56:17 +08:00
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/*
|
|
* Copyright 2014-2021 The GmSSL Project Authors. All Rights Reserved.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
/* FIPS PUB 46-3 "Data Encryption Standard (DES)" */
|
|
|
|
#ifndef GMSSL_DES_H
|
|
#define GMSSL_DES_H
|
|
|
|
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
#define DES_KEY_BITS 56
|
|
#define DES_BLOCK_BITS 64
|
|
#define DES_KEY_SIZE (DES_KEY_BITS/8)
|
|
#define DES_BLOCK_SIZE (DES_BLOCK_BITS/8)
|
|
|
|
#define DES_RK_BITS 48
|
|
#define DES_RK_SIZE (DES_RK_BITS/8)
|
|
#define DES_ROUNDS 16
|
|
|
|
|
|
typedef struct {
|
|
uint64_t rk[DES_ROUNDS];
|
|
} DES_KEY;
|
|
|
|
void des_set_encrypt_key(DES_KEY *key, const unsigned char user_key[8]);
|
|
void des_set_decrypt_key(DES_KEY *key, const unsigned char user_key[8]);
|
|
void des_encrypt(DES_KEY *key, const unsigned char in[8], unsigned char out[8]);
|
|
|
|
|
|
typedef struct {
|
|
DES_KEY K[3];
|
|
} DES_EDE_KEY;
|
|
|
|
void des_ede_set_encrypt_key(DES_EDE_KEY *key, const unsigned char user_key[24]);
|
|
void des_ede_set_decrypt_key(DES_EDE_KEY *key, const unsigned char user_key[24]);
|
|
void des_ede_encrypt(DES_EDE_KEY *key, const unsigned char in[8], unsigned char out[8]);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif
|